Loose-leaf binder



Nov. 22, 1932. M. L. LARSEN LOOSE LEAF BINDER Filed OGC. 27, 1950 1,INVENTOR.

ATTORNEY Patented Nov. 22, 1932 UNITED STATES MARY' L. LARSEN, OAKLAND,CALIFORNIA i Loose-LEAF BINDER Application led October 27, 1930. SerialNo. 491,370.

' This invention is for a 'loose leaf binder, and has for its mainobject the provision of a post type loose leaf binder, which is adaptedto the insertion of additional leaves until such time as the record iscomplete, and pro.-

viding additional means for permanently locking said binder to. completea permanent record.

Another object of the invention is to provide a loose leaf binder whichmay be used for the, temporary tiling of leaves, or which may be, usedfor permanent record, and permanently locked after insertion of leavestherein.

A further object of the invention is to provide a conveniently operateddevice,

which is cheaply constructed, and yet has all the desirable features ofstrength, durability, ease of manipulation, and pleasing appearance.

@ther objects and advantages of the invention will become apparent asthefollowing description is read on the. drawing forming a part of thisspecification.

The invention consists of a cover hinge element, formed from a strip ofsheet metal, having a tube or longitudinally extending eye formed alongone edge and throughout its length, and having recesses cut back throughthe eye to receive looking posts, the sides extending transversely fromthe eye having a slot formed between them, said tube andA slot beingkeyhole-shaped in cross section tov slidably receive a locking bar, said315 bar consisting of a strip of sheet metal having transverseextensions formed into eyes, and locking pins fixed inthe eyes andextending forwardly therefrom, the distance between the ends of each pinbeing less than the distance between the locking posts adjacent thereto,and one of the pins being circumterentially recessed to cooperate with alocking post. The locking bar extends beyond` the end of the cover hingeelement, and is scored adjacent the. end, and bent back, so as to permitbreaking off the bent end when the device is to be permanently locked,which is prevented by the stop formed by the bent 5,0 end.

- The invention is adequately illustrated in the accompanying drawing,in which Fig. 1 is a plan view of the invention;

Fig. 2 is an end elevation drawn to an enlarged scale; and

Fig. 3 is a fragmentary end elevation of a book formed by the binder. f

The invention is intended to be used in conjunction with a binding` post10, covered by Patent No. 1,1182,7 81, Feb. 5, 1924 and which consistsof a cylindrical sleeve 11, in which are slidably mounted, opposedlatches 12, outwardly urged by a spring 13, although I do not restrictthe invention to use with a particular type of post.

The invention consists of a strip of sheet metal 14.-, having an eye 15formed longitudinally thereof, and an interposed slot extending from theeye, and formed by o-setting the sheet as at 16, forming a key-hole typeslot. Perforations arek provided ask at 17, for reception of tacks 18used tor aiiixing the device to a cover 19 of cardboard, or othersuitable material. Slots 20 are 'formed through the eye to receivelocking posts 1l), or other. suitable posts. y

The locking bar consists of a strip of sheet metal 21, having transverseextensions 23 formed into eyes 22, one of said eyes having ailixedtherein, by welding or other suitable means, a locking pin 24 providedwith a peripheral recess 25, adapted to cooperate with the latches 12 inpost 10, and the other eyes having plain pins 26 and 27, the distanceybetween the corresponding ends of the pins being less than the distancebetween the corresponding sides of slots 2O adjacent thereto. Thestrip21 has an extension 28 at one end, which is bent at right angles toi'orm a finger lug 29, the` bar being scored at B0, whereby it may bebroken oli' when it isr desired to permanently lock the device.

The pins 26, 24 and 27 are intended to engage the respective posts 10successively which provides more convenient securing of thev cover 19,astheiirst of the pins may be engaged, and the balance of the posts arethen easily aligned. Each pin is shorter than the distance between theslots adjacent thereto and, the` pins are mounted on the bar with theirrespective forward ends at different distances from the respective slotsahead when the bar is in retracted position, whereby when the lockingbar is advanced, the pins will successively engage their respectiveposts in the slots.

The invention is rusedy as follows: A cover 19, with the inventionattached as at 18, has posts 10 secured in the slots 20 by press-- ingthe locking bar linger lug 29 inwardly to rest against the end of strip14, which causes the locking pins 26, 24 and 27 to successively enterthe cooperating posts 10, the

ins entering apertures 31, but being stopped by lug 29 before pin 24enters far enough to permit cooperation of latch 12 with recess 25.Under such conditions the locking bar 21 with locking pins 26, 24 and 27may be withdrawn by means of lug 29. To permanently lock the device, thefinger lug 29 is broken olf at the score 30, and the end 28 pressed insufiiciently to permit latch 12 to enter recess in pin 24, after whichthe ins or locking bar cannot again be withrawn. A similar device issecured to the opposite ends of the posts 10, forming the opposite cover32, the leaves 33 being threaded on osts 10 by means of spaced aperturesin the eaves, forming the book as indicated in aving described anoperative device, it will be understood that variations in constructionand arrangement of parts, which are consistent with the appended claims,may be resorted to Without detracting from the spirit or scope of theinvention, or sacriiicin g any of the advantages thereof.

1. A binder element for loose leaves, in combination with a plurality ofposts having transverse apertures adjacent the ends, one of said postshaving resiliently urged plungers therein; said element comprising acover edge member adapted to be attached to a cover, and having akey-hole type slot extendin throughout its length and recesses throngthe eye portion of said slot adapted to receive said posts in equallyspaced relation, a locking bar slidable in said slot and having aplurality of transverse extensions, lookin pins secured to saidextensions and slidab within the eye portion of said slot, one of saidpins being circun'iferentially recessed to cooperate with a resilientlyurged plunger in one of said posts, and detachable means for preventingcooperation of said. plunger with said recess.

2. vA binder element for loose leaves, in combination with a pluralityof posts having transverse apertures adjacent the ends, one of saidposts having a resiliently urged latch therein; said element comprisinga cover edge member adapted to be secured to the back edge of a bookcover and having a key-hole type slot extending throughout its lengthand spaced recesses formed transversely through the eye ortion of saidslot for cooperation with saidposts, a locking bar slidable in said slotand aving transversely extended eye members slidable in the eye portionof said slot; pins fixed in said eye members, the for- Ward ends of saidpins being spaced apart a distance less than that between rear sides ofrecesses adjacent thereto, one of saidfpins having a peripheral recessadapted to cooperate with said latch, and a detachable stop member atone end of said locking bar adapted to be removed to permit permanentlylocking said device.

A loose leaf binder, including a plurality of posts each having atransverse aperture adjacent each end, one of said posts being providedwith a resiliently urged latch, a cover edge element having a series ofequally spaced transverse post receiving slots and a slide provided witha plurality of hinge pins the forward ends of said pins being unequallyspaced and adapted to successively cooperate with said posts, one ofsaid pins having a groove adapted to cooperate with said latch anddetachable means on said slide for preventing cooperation of said latchwith said groove.

4. A binder element for loose leaves in combination with a locking posthaving a latch and a plurality of leaf engaging posts, each post beingprovided with a transverse aperture adjacent one end thereof, saidelement comprising a cover edge member havlng a tubular edge and aplurality of equally spaced post-receiving slots formed inthe edgethereof, a locking bar having transverse extensions formed into eyes andslidably mounted within the tubular edge, each extension having a pinsecured therein, the distance between the forward ends of two pins beingless than the distance between the rear sides of the slots respectivelyadjacent thereto in said cover edge member, said pins being mounted withtheir respective forward ends at different distances from the respectiveslots ahead when said bar is in retracted position whereby, when saidlocking bar is advanced, the pins will successively engage said posts inthe slots, one of said pins having a peripheral groove formed therein,said locking bar having a detachable extension beyond the end of saidcover' edge member adapted to prevent registry of the peripheral groovein said one pin with the latch in said locking post. l

In testimony whereof I have aiiixed my signature.

MARY L. LARSEN.

